Swirls of plankton decorate the Arabian Sea
Winter blooms of Noctiluca scintillans may be disrupting the marine ecosystem

SCINTILLATING SWIRLS In a satellite image taken February 3, plankton blooms appear as green whorls in the Arabian Sea. In recent years, an algae-filled plankton species has been changing the ecology of these waters.
MODIS-Aqua Ocean Color Data/NASA
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